Glass-grinding machine



Y E. A. RYQN. GLASS GRINDING MACHINE.

APPLICATION FILED JULY ZZ, 19 19. Patented Sept. 12, 1922.-

3 SHEETS-SHEET 1.

ZWM

E. A. RYON.

' GLASS GRINDING MACHINE. APPLICATION FILE D JULY 22,19I9.

Patented Sept. 12, 1922;

3 SHEETS-SHEET 2.

E. A. RYONQ GLASS GRINDING MACHINE.

APPLICATION FILED JULY 22; 1919.

Patented Sept. '12, 1922.:

3 SHEETS-SHEET 3- Ma -Am Patented Sept. 12,1922,

iysrarss i nane rarest. 'orei cia.

EDWARD A. RYON, or PITTSBURGH, PENNSYLVANlTAQASSIGNOR Noreen. w. Sm-1 c MENs, orwE LsBono, PENNSYLVANIA. v

GLASS-GRINDING MAcn'INE.

Application filed J'uly' 22,

'lVly present invention relates to machines for forming bands or rings "on glassware,

such as tumblers'or drinking glasses.

The objectsof the invention are to provide a machine for this purpose which will be relatively simple and inexpensive, which will operate to quickly form the band or bands on the glassware and which will automatically adjust itself to inequalities in thesurface of the glass.

Speaking generally the invention consists of a cutting wheel and a glass support relatively movable towardeach other and also relatively movable angularly to bring the face of the glassware into'parall'elism with the working face of the cutting wheel.

Other features of the invention 'relate'to the special mounting for the work support, to the means for gauging the work with respect to the cutting surface and to a quickly detachable self-adjusting support for the glassware.

All of these features will be more fully understood from the following specification and fromthe accompanying drawings, which illustrate the invention embodied in one of its practical forms.

In said drawings: V

Figure l'is *a front view of the machine. Figure Qwis an end view of the same,

Figure 3 is a top pla'nwiew; and

Figure 4 'is a sectional elevation taken a substantially on line 4: of Figure 1.

Referring now to said drawings,-by'reference characters, 5 designates a banding wheel, shown in 'the present disclosure as 7' an abrasive wheel having a plurality of ridges for cutting a number of 7 parallel bands and mounted on a shaft 6 supported in slidably adjustable boxes 7,which may be shifted with respect to the work bymeans of the screws 8, Thecutter wheel shaft is 1919. "seriaiNo. 312,479.

driven by suitable means, such as or pulleys 9- and belt 10. v

Thework, which is shown in the form of the pulley a tumbleror drinking glass"1-1,'is carriedby a support in the nature of'am'andr'el and consisting 'ofa base plate 12 mounted on a shaft 13,"a'nd having an annular flange M to 'con'fine't-he rim ofthe glass, said shaft carrying a supporting disk15"ofyi'e'ldable material fitting inside the;"mouth portionof the glass and a secondsimflaryiddame supporting disk 16, fitting the bottor'nioo'rl tion ofthe (glass; The "first disk 'may be fastened on the shaft 'or arbor 13 bymeans of the pin, 17 and the second disk '16 is shown as yieldable axially toward thebase disk15-by being slidablyeng'aged on the arbor, there being' a spritig'18 interposed between the two disks and a shoulder provided by the pin 19""'at the outer 'endbf the arbor to limit" the outward movement In use the tumbler" is of the second disk. slipped over the end of the arboram as the outer 'diskfits the inttier' periphery of i the bottom portion of the 'glass, 'it is carried along with the glassi'n -themanner findi cated in Figure 1,'the"ifnner 'fi xeddisk yieldably fitting the inner" peripher at 5 the mouth portion of the glass andtlieri'mbf the glass being confined -withinthearriiular flange let of thebas e plate 12. The whole thus constitutes in effeot a yieldab le and self-adjustingerbor for theglass.

The glassis shown asremOvabIyheld in w positiono'nsaid arbor by means of "afreely rotatable pressure foot19, carried by the 'a'djusting screw -20, which "is mounted in v the lever-21'pivotedat 22 on the supporting arm 23 and "yieldably -"held {and enga ed with the bottom fof the glass by the spring 24.

In the present disclosure the glas's sup- I port is the memberwhich"is'movable to effect thefengagement of'thecutter and the glassware The arbor or shaft 13 is for this purpose journale'd in'a blockf25 pivotally mounted on the upper end of a post 26, whichis supportedby "a suitablefbsxin 27 on the rock shaft'28. I This rock-"sh'a tfis supported in suitable bearings "29 "and" itwill be cl'ear that this construction enables the glass support f to he swung bodily toward and away from the cutter and also to be swung at an angle, as indicated in Figure 3 to bring the face of the glass into engagement with the working face of the cutter. The shaft 13 is shown as driven by the belt 30 and pulley 31. A thrust bearing is shown as provided at 32 to take up the thrust of the spring pressed holding member 19 and the arm 23 which supports this memher is shown directly attached to the movable bearing 25 of the arbor, so as to follow the movement of said bearing and arbor.

Adjustable stops 33 and 34 are shown provided on the rock shaft, which can be set to engage the bearings 29 to thus determine the longitudinal adjustment of the rock shaft and hence the position at which the band or bands will be applied to the work. Cooperating stops 35 and 36 are shown provided on the base 37 and arbor 18, respectively to limit the outward swinging movement of the arbor mechanism.

Means are provided in this invention for supporting and guiding the work at a point or points adjacent to the cutting wheel. These supports consist in the present disclosure of the wheels or rollers 38 disposed at opposite sides of the cutting wheel in position to engage the surface of the end portions of the sides of the glass as it is pressed toward the cutter, said rollers being pivotally carried by the spring pressed plungers 39 telescopically engaged in the supports 40, which are shown as pivotally supported on the frame at 41, so as to be angularly movable with respect to the work.

In operation the work is slipped on the mandrel where it is held by the spring pressed holder described. The work support is then shifted toward the cutter, as by grasping the bearing 25 by hand and in said shifting movement the mandrel is turned to bring the face of the work into substantial parallelism with the cutting face. This adjustment is facilitated and in fact made substantially automatic by the engagement of the face of the work with the yielding supporting rollers, which, as shown, normally stand out beyond the rim of the cutting wheel so as to engage the face of the work and to recede as the work is pressed against the cutting wheel. The pressure of these rollers is adjusted so that they will exert their force to hold the face of the work in substantial parallelism to the face of the cutter. These work supporting and guiding rollers adjust themselves to the irregularities in the surface .of the glass, permitting the glass to come into proper engagementwith the cutting wheel at all points, the depth of the out being determined wholly by the pressure exerted on the mandrel.

From the foregoing it will be seen that the machine is relatively simple and is designed to automatically take care of irregularities in the surface of the glass and such variations as would ordinarily occur in the size of the glass. The machine also, it will be noted, is readily adjustable in re gard to the position of the bands, and in the relation of the cutter to the work sup port.

l vhat I claim is:

1. In a glass banding machine, a cutting member, a swinging support movable toward and away from said cutting member and a rotatable work holder pivotally mounted on said swinging support and thereby adjustable to vary the angle of the face of the work with respect to the face of the cutting mem her, and yieldable means at the side of the cutting wheel for engaging and supporting the work as it is pressed against the cutting wheel.

In a glass banding machine, a cutting member, a swinging support movable toward and away from said cutting member, and a rotatable work holder pivotally mounted on said swinging support and thereby adjustable to vary the angle ofthe face of the work with respect to the face of the cutting member, and yieldable supports at opposite sides of the cutting wheel for engaging the face of the work at opposite sides of the wheel as the same is pressed against the wheel.

3. In a glass banding machine, a cutting member, yieldable supports at opposite sides of said member and projecting in a plane to engage the face of the work which is brought into engagement with the cutting member to thereby guide and yieldingly support said work, and a work support movable to carry the work into "-ngagement with said yieldable supports- 4. In a glass banding machine, a cutting member, a work supporting member, one of said members being relatively movable with respect to the otier member to bring the face of the work into engagement with the cutting member, and a yieldable gauge and sup port for the work comprising a spring pressed yieldable roller positioned to engage the face of the work as the work is engaged with the cutter.

5. I11 a glass banding machine, a cutting member, a work supporting member, one of said members being relatively movable with respect to the other member to bring the face of the work into engagement with the cutting member, and a yieldable gauge and support for the work comprising a spring pressed yieldable roller positioned to engage the face of the work as the work is engaged with the cutter, and said yieldable roller being movable angularly with respect to the face of the work.

6. In a glass banding machine, a cutting member, a work supporting member, one of said members being, relatively movable with i respect to the other member to bring the face of the Work into engagement with the cutting member, and a yieldable gauge and support for the work comprising a roller positioned to engage the face of the work as the work is engaged with the cutter, and a spring pressed telescopic support for said roller.

7. In a glass banding machine, a longi tudinally slidable rock shaft, stops for limiting the sliding adjustment of the rock shaft,

a rotatable glass holder pivotally supported 8. In a glass banding machine, a cutter, a

Work-ho1der movable toward said'cutter, a f' yieldable work-engaging support at the side of said cutter, said yieldable support being angularly movable with respect to the work.

In witness whereof, I hereunto set my hand this 18 day of July, 1919;

EDWARD A. RYoN; 

